CVE-2026-61866

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 91% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the JNG encoder when a blob cannot be opened. Attackers can trigger the memory leak by providing malformed JNG files that fail blob operations, causing resource exhaustion.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 16, 2026

Advisory Details (2)

Auto-updated Jul 16, 2026
Patch available. Sources: github.
generic

ImageMagick before 7.1.2-26 Memory Leak in JNG encoder | Advisories | VulnCheck

https://www.vulncheck.com/advisories/imagemagick-before-26-memory-leak-in-jng-encoder
github Patch Available

Memory Leak in JNG encoder when a blob could not be opened · Advisory · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-99w9-hv66-rfv7

Vendor Advisories for CVE-2026-61866(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuperlmagick (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13) @ noble2026-09-18ubuntu
ubuntuperlmagick (8:6.8.9.9-7ubuntu5.16+esm24) @ xenial2026-09-18ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(21 across 5 ecosystems)
NuGet(17)
PackageVulnerable rangeFixed inDependents
Magick.NET-Q16-AnyCPU10.0.0 ... 9.1.2 (217 versions)14.15.0—
Magick.NET-Q16-arm6410.0.0 ... 9.1.2 (62 versions)14.15.0—
Magick.NET-Q16-HDRI-AnyCPU10.0.0 ... 9.1.2 (214 versions)14.15.0—
Magick.NET-Q16-HDRI-arm6410.0.0 ... 9.1.2 (62 versions)14.15.0—
Magick.NET-Q16-HDRI-OpenMP-arm6410.0.0 ... 9.1.2 (62 versions)14.15.0—
Magick.NET-Q16-HDRI-x6410.0.0 ... 9.1.2 (214 versions)14.15.0—
Magick.NET-Q16-HDRI-x8610.0.0 ... 9.1.2 (214 versions)14.15.0—
Magick.NET-Q16-OpenMP-arm6410.0.0 ... 9.1.2 (62 versions)14.15.0—
Magick.NET-Q16-OpenMP-x6410.0.0 ... 9.1.2 (114 versions)14.15.0—
Magick.NET-Q16-x6410.0.0 ... 9.1.2 (233 versions)14.15.0—
Magick.NET-Q16-x8610.0.0 ... 9.1.2 (233 versions)14.15.0—
Magick.NET-Q8-AnyCPU10.0.0 ... 9.1.2 (217 versions)14.15.0—
Magick.NET-Q8-arm6410.0.0 ... 9.1.2 (62 versions)14.15.0—
Magick.NET-Q8-OpenMP-arm6410.0.0 ... 9.1.2 (62 versions)14.15.0—
Magick.NET-Q8-OpenMP-x6410.0.0 ... 9.1.2 (114 versions)14.15.0—
Magick.NET-Q8-x6410.0.0 ... 9.1.2 (233 versions)14.15.0—
Magick.NET-Q8-x8610.0.0 ... 9.1.2 (233 versions)14.15.0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.9.11.60+dfsg-1.3 ... 8:6.9.11.60+dfsg-1.3+deb11u9 (16 versions)8:6.9.11.60+dfsg-1.3+deb11u16—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:6.9.11.60+dfsg-1.6 ... 8:6.9.11.60+dfsg-1.6+deb12u9 (13 versions)8:6.9.11.60+dfsg-1.6+deb12u13—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.2.8+dfsg1-1 (34 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
imagemagick8:7.1.1.43+dfsg1-1 ... 8:7.1.2.8+dfsg1-1 (20 versions)8:7.1.2.26+dfsg1-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 16× in last 7d / 69× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 188 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 04:46 UTCEG score recompute
  3. 2026-09-18 04:46 UTCVendor advisory
  4. 2026-09-18 04:46 UTCGHSA enrichment
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-14 11:14 UTCVendor advisory
  8. 2026-09-14 11:14 UTCGHSA enrichment
  9. 2026-09-13 23:13 UTCEG score recompute
  10. 2026-09-13 23:13 UTCVendor advisory
  11. 2026-09-13 23:13 UTCGHSA enrichment
  12. 2026-09-13 07:17 UTCEG score recompute
  13. 2026-09-13 07:17 UTCVendor advisory
  14. 2026-09-13 07:17 UTCGHSA enrichment
  15. 2026-09-12 13:04 UTCVendor advisory
  16. 2026-09-12 13:04 UTCGHSA enrichment
  17. 2026-09-11 21:47 UTCEG score recompute
  18. 2026-09-11 21:47 UTCVendor advisory
  19. 2026-09-11 21:47 UTCGHSA enrichment
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 09:37 UTCEPSS rescore
  22. 2026-09-08 22:01 UTCEPSS rescore
  23. 2026-09-08 00:57 UTCEG score recompute
  24. 2026-09-08 00:56 UTCGHSA enrichment
  25. 2026-09-07 16:01 UTCEPSS rescore
Show 75 more
  1. 2026-09-06 13:47 UTCEPSS rescore
  2. 2026-09-06 13:29 UTCGHSA enrichment
  3. 2026-09-05 20:52 UTCEG score recompute
  4. 2026-09-05 20:52 UTCGHSA enrichment
  5. 2026-09-04 05:07 UTCEPSS rescore
  6. 2026-09-02 14:12 UTCEPSS rescore
  7. 2026-09-01 13:54 UTCEPSS rescore
  8. 2026-09-01 04:40 UTCEPSS rescore
  9. 2026-08-31 04:33 UTCEG score recompute
  10. 2026-08-31 04:33 UTCGHSA enrichment
  11. 2026-08-30 19:17 UTCEPSS rescore
  12. 2026-08-30 16:05 UTCGHSA enrichment
  13. 2026-08-30 03:54 UTCEG score recompute
  14. 2026-08-30 03:54 UTCGHSA enrichment
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:42 UTCEPSS rescore
  17. 2026-08-28 01:52 UTCGHSA enrichment
  18. 2026-08-27 13:16 UTCGHSA enrichment
  19. 2026-08-27 01:00 UTCEG score recompute
  20. 2026-08-27 01:00 UTCGHSA enrichment
  21. 2026-08-26 14:46 UTCEPSS rescore
  22. 2026-08-26 12:59 UTCGHSA enrichment
  23. 2026-08-26 00:59 UTCEG score recompute
  24. 2026-08-26 00:59 UTCGHSA enrichment
  25. 2026-08-25 13:49 UTCEPSS rescore
  26. 2026-08-25 12:42 UTCGHSA enrichment
  27. 2026-08-25 00:41 UTCEG score recompute
  28. 2026-08-25 00:41 UTCGHSA enrichment
  29. 2026-08-24 12:36 UTCEG score recompute
  30. 2026-08-24 12:36 UTCGHSA enrichment
  31. 2026-08-24 00:35 UTCGHSA enrichment
  32. 2026-08-23 12:34 UTCGHSA enrichment
  33. 2026-08-23 00:34 UTCEG score recompute
  34. 2026-08-23 00:34 UTCGHSA enrichment
  35. 2026-08-23 00:19 UTCEPSS rescore
  36. 2026-08-22 12:25 UTCGHSA enrichment
  37. 2026-08-22 00:24 UTCEG score recompute
  38. 2026-08-22 00:24 UTCGHSA enrichment
  39. 2026-08-21 23:49 UTCEPSS rescore
  40. 2026-08-21 12:21 UTCGHSA enrichment
  41. 2026-08-21 00:20 UTCEG score recompute
  42. 2026-08-21 00:20 UTCGHSA enrichment
  43. 2026-08-20 22:55 UTCEPSS rescore
  44. 2026-08-20 12:18 UTCGHSA enrichment
  45. 2026-08-20 00:18 UTCEG score recompute
  46. 2026-08-20 00:18 UTCGHSA enrichment
  47. 2026-08-19 17:04 UTCEPSS rescore
  48. 2026-08-19 08:01 UTCGHSA enrichment
  49. 2026-08-18 20:00 UTCEG score recompute
  50. 2026-08-18 20:00 UTCGHSA enrichment
  51. 2026-08-18 13:48 UTCEPSS rescore
  52. 2026-08-18 03:48 UTCGHSA enrichment
  53. 2026-08-17 15:47 UTCEG score recompute
  54. 2026-08-17 15:47 UTCGHSA enrichment
  55. 2026-08-17 13:47 UTCEPSS rescore
  56. 2026-08-17 03:46 UTCGHSA enrichment
  57. 2026-08-16 15:45 UTCEG score recompute
  58. 2026-08-16 15:45 UTCGHSA enrichment
  59. 2026-08-16 14:56 UTCEPSS rescore
  60. 2026-08-16 03:44 UTCEG score recompute
  61. 2026-08-16 03:44 UTCGHSA enrichment
  62. 2026-08-15 15:43 UTCGHSA enrichment
  63. 2026-08-15 03:42 UTCEG score recompute
  64. 2026-08-15 03:42 UTCGHSA enrichment
  65. 2026-08-15 01:30 UTCEPSS rescore
  66. 2026-08-14 15:41 UTCGHSA enrichment
  67. 2026-08-14 03:41 UTCEG score recompute
  68. 2026-08-14 03:41 UTCGHSA enrichment
  69. 2026-08-13 22:00 UTCEPSS rescore
  70. 2026-08-13 15:40 UTCGHSA enrichment
  71. 2026-08-13 03:35 UTCGHSA enrichment
  72. 2026-08-12 15:35 UTCEG score recompute
  73. 2026-08-12 15:35 UTCGHSA enrichment
  74. 2026-08-12 13:51 UTCEPSS rescore
  75. 2026-08-12 03:15 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-61866?
CVE-2026-61866 is a high vulnerability published on July 15, 2026. ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the JNG encoder when a blob cannot be opened. Attackers can trigger the memory leak by providing malformed JNG files that fail blob operations, causing resource exhaustion.
When was CVE-2026-61866 disclosed?
CVE-2026-61866 was first published in the National Vulnerability Database on July 15, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61866 actively exploited?
CVE-2026-61866 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 91.4% of all scored CVEs.
What is the CVSS score of CVE-2026-61866?
CVE-2026-61866 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-61866?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61866, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-61866

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